4 uptime tests for 123series.us were performed during the 1 413 day period starting on January 12, 2021, according to records. The checks conducted as of November 25, 2024, showed that 123series.us was either down or facing challenges with operational functionality. During 100.00% of inspections, which equates to 4 times, 123series.us was found to be unavailable, with July 16, 2021, being when it last occurred. Every response attests to the fact that, as of November 25, 2024, no error status codes have been received. 123series.us responded in — seconds on July 16, 2021, contrasting its 0.001 seconds average response time.